Shock-absorber.



BENJAMIN F. MRTZ MID QSE-EH HARTZ, DE IHIANAOS, NELN..

SEOGK-ESBSBBEBa nooners.

appassiona mei october e, aait. semi no. raves.

To all whom t concern:

Be it known that we, BENJAMIN MARTZ and Josemi MARTZ, citizens, of the United States, residing at Indiana olis, in

the countyof Marion'anfl State of odiano,

have invented a new useful Shock-Absorber, of which the following is a, specif.

fication.

It is the object of our invention to provideV an effective, simple, and inexpensive shock absorber, and one capable of taking care of the rebound as well as of the direct shock,v

In carrying outl our invention, we provide a lever which is pivotally 4mounted on the axle and pivotally connected to the vehicle body, preferably to the main vehicle spring, and which is acted on on the two sides of its pivot by two springs which are stressed alternately as thevehicle bodyl rises and falls relatively to the axle.

4'The singleiiglire of the drawing isfari elevation, in partial section, of a shoclrab sorber embodying ourinvention, showing its connection to the vehicle axle and the `main vehicle spring. y

i Oli the vehicle axle 10 is fastened'a bed l plate 1l, as by means of clamping bolts 12 which pass through ears '13 non such bed plate 11 and a coperating clamping yoke 14, l.'Iliebed plate 11 is provided at an in# termediate point with an upstandiiig post 15, which at its upper end carries a pivot pin 16 on which is mounted a lever 17 which extends in both directions from its pivotal point, preferably in the saine vertical plane i .asthe axle 10. One lprojecting end 18 of the lever 17 is curved upward and somewhat backward, and at its upper end carries a pivot. pin 19 on which is pivoted a depend-' ing link 20 which at its lower end is connected by a pivot pin 21 to the end of the main vehiole'spring 22, which is also in the same vertical plane as the axle 10.y The under sides of the two'projectiiig eiids of the lever than is the spring 25. Either ofthe springs Specification of Letters Peitent.r

2d or maybe in diiplicet el When a riit oi' a ridge in the road is encountered, and a lrelative vertical movement between the axle lO'and the vehicle body is produced, the' spring 24: is compressed as the vehicle body including the spring 22 moves downward toward the axle 10, the spring 25 at the saine .tinieeapanding and .the spring 25 is come n ri mib pressed the vehicle body including 'the spring 22 moves npward relative to the aisle 10, the spring the same -time ing.- This alternate compression o the esA springs 2li and 25 is produced by rocking of the lever 17 on the pivot pin 16, and eiec tively cushions not only the direct sli'cclar biit the rebound. The bending of the main ve- .hicle spring 22 is not at all interfered with by the rockingof the lever 17, 'beiise'the link 20 permits the endl of the springe*A 22 to 18 of such leveru Y We claim as oi'ir invention:

LA. shock absorber, comprising a bed plate provided with means for clamping it to an axle, a leverpivotally mounted on said bed plate and extending in both 'directions from its pivotal point, a spring; between each projecting end oi suoli lever and the bed plate, said two springs tending to turn the. lever in oppositev directions, and` a link pivotally mounted at one end on one, prou "jecting, end of saidlever and provided at the other end with means for direct pivotal attachment to the iiiaiii vehicle s irriiigl A shoclr absorber, comprising a support, a lever pivoted at an intermediate point on sani support and proigid'ed at' one move horizontallyA relatively to the bent end projecting end with attaching device, a

spring acting; betweeiisaid support and said lever on eachl side ci the pivotal point of the -lever said. two s rins tendiniT to move the 7 l: b a

lever in opposite directions, and a link pivot ally mounted at one end on one progecting end of said lever and provided atthe other end;

with ineens iior attachment to the other or the tworelatively movable parts connected "by the shock absorber from that which carries said support, f

3. A shock absorber, comprising a bed plate provided with means for clamping it to an axle, a lever piv'otally mounted on said plate and provided with two'arrasa spring between eac-h of said arios and the bed plate, said two springs tending to turn the lever in. opposite directions-about its pivot, and a link pivotally connected at one end to one of seid arms andprovded et'the other end with ineens for direct pivotal attachment to the main vehicle spring.

e, A shook rtlisorben comprising e support, a `ever pvotely mounted on said support and having two arms, one of said arms being provided with an attaching device, and a. spring :Loting between each of said arms and said support, seid two springs tending to movetie level' in opposite dil-ee tions, sind a iink pvotally connected at one ...oao

the other of the two relatively movable parte connected by the shock absorber from .that which carries said support.

'In witness whereof We have hereunto set our hands at Indianapolis, Indiana, this 4th dey of October, A. D. one thousand nine hundred and fifteen.

BENJAMIN F. MARTZ. JOSEPH MART/"5. 

